Court documents Action News found show he had 350 victims, and some 80,000 pictures and videos on his computer. He used different names to lure the children in and different routing addresses to try to hide from police. The problem is the FBI has only identified a little more than 100 victims, leaving some still unknown.

It's the reason one mom says she pays close attention to what her kids do online.

"They say I'm over protective. I don't consider it over protective," said Stacy Pendarvis, program director with the Monique Burr Foundation. She goes into local classrooms and warns kids about people like Chansler. "Going into schools is the best way to educate students," said Pendarvis.

McCarley said it's also up to parents to know what's going on.

"If someone asks them for these, they probably don't have the best interest in mind," said McCarley.